build.py

#!/usr/bin/env python3
"""
Build script — packages Teleprompter into a standalone executable.

Usage:
    python build.py

Requirements:
    pip install pyinstaller

Produces:
    dist/teleprompter.exe   (Windows)
    dist/teleprompter       (Linux)
"""

import subprocess
import sys
import os
import shutil

SCRIPT = "teleprompter.py"
APP_NAME = "teleprompter"


def ensure_pyinstaller():
    """Install PyInstaller if not present."""
    try:
        import PyInstaller  # noqa: F401
        print("[OK] PyInstaller is installed.")
    except ImportError:
        print("[*] PyInstaller not found — installing...")
        subprocess.check_call([sys.executable, "-m", "pip", "install",
                               "pyinstaller", "--quiet"])
        print("[OK] PyInstaller installed.")


def build():
    os.chdir(os.path.dirname(os.path.abspath(__file__)))

    ensure_pyinstaller()

    # Clean previous builds
    for d in ("build", "dist", f"{APP_NAME}.spec"):
        if os.path.isdir(d):
            shutil.rmtree(d)
        elif os.path.isfile(d):
            os.remove(d)

    cmd = [
        sys.executable, "-m", "PyInstaller",
        "--onefile",
        "--windowed",
        "--name", APP_NAME,
        "--clean",
        SCRIPT,
    ]

    print(f"[*] Building: {' '.join(cmd)}")
    subprocess.check_call(cmd)

    if sys.platform == "win32":
        exe = os.path.join("dist", f"{APP_NAME}.exe")
    else:
        exe = os.path.join("dist", APP_NAME)

    if os.path.isfile(exe):
        size_mb = os.path.getsize(exe) / (1024 * 1024)
        print(f"\n[OK] Build successful!")
        print(f"     Output: {os.path.abspath(exe)}")
        print(f"     Size:   {size_mb:.1f} MB")
    else:
        print("\n[ERROR] Build failed — executable not found.")
        sys.exit(1)


if __name__ == "__main__":
    build()